Polygamy with Solomon
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1 Kings 11:4–8
For when Solomon grew old, his wives turned his heart after other gods, and he was not wholeheartedly devoted to the LORD his God, as his father David had been. / Solomon followed Ashtoreth the goddess of the Sidonians and Milcom the abomination of the Ammonites. / So Solomon did evil in the sight of the LORD; unlike his father David, he did not follow the LORD completely.